AlgaeGuard

bbe moldaenke ©



Preetzer Chaussee 177 | 24222 Schwentinental | Germany phone (+49) 431 38040-0



fax

(+49) 431 38040-10



e-mail info@bbe-moldaenke.de net

www.bbe-moldaenke.de

The AlgaeGuard

Continuous, cost-effective measurement of chlorophyll-a

The online instrument for ...

. determination of total chlorophyll-a

. quantification of algal classes: green, blue-green (cyanobacteria), brown (diatoms and dinoflagellates) and cryptophycea

The AlgaeGuard continuously measures B

il

md

mzweispaltig 125

the

chlorophyll

fluorescence

of

microalgae in real-time and shows the current result on the integrated display.



In contrast to time-consuming sample preparations

and

counting,

the



fluorometric

assay

provides

rapid

determination of the chlorophyll content in

its

natural

environment.

The

AlgaeGuard is adapted to HPLC-pigment analysis. The bbe software for algae class determination identifies the distribution of algae classes relating to the total





'chlorophyll-a' content, i.e. of green algae, blue-green alg ae (cyanobacteria), cryptophyceae and brown algae (diatoms, bbe AlgaeGuard: with sensor (left), 15" touchpad display dinoflagellates).



The system can be adapted to new (customised) algae classes added to the The fluorescence signals are collected measuring system. The measurement of Applications

by a sensitive photomultiplier and used

.

yellow substances (CDOM) accounts for to calculate the

algae classes. Pulsed

'plug and play'

an additional source of fluorescence, thus

.algae class determination an

automated

correction

improves

light from the spectrofluorometer

.

chlorophyll determination especially at excites the algae pigments.

yellow substances detection

.

low concentrations. Normspectra with An

automatic

cleaning

device

transmission measurement

.

individual fingerprints for each class periodically cleans the sensor cell and

.integrated cleaning device provide for an optimised evaluation of removes particles or biofilms. This

.touchpad display

the results.

guarantees

.PC operation with AOA software Measurement

the prevention of

interference that causes attenuation of

.4 integrated relays fluorescence or changes in the optical

.RS232 interface

Pressing START on the touchscreen properties of the measuring cell and optional 4-20 mA outputs

.

enacts the illumination program of the thus extends the maintenance-free optional modem

sample inside the chamber.

period.

www.bbe-moldaenke.de





©

AlgaeGuard

bbe moldaenke

Operation

Although the AlgaeGuard is a stand-alone instrument, it can also be operated via an external PC with the software supplied. This can also be used to change the parameters and settings. For data export, the instrument can be equipped with an RS232 interface or analogue outputs for connection to an external datalogger.

Applications

. power plants

. drinking water monitoring stations

.. lake and river analysis limnological work

.

Alarm indication in

AOA software when research and education operating via PC

The AlgaeGuard, the smaller brother of the well-established AlgaeOnlineAnalyser, is becoming a prominent instrument in measuring stations.

Technical Data

Measurands

total chlorophyll [µg chl-a/l]

concentration of green algae [µg chl-a/l]

concentration of blue-green algae [µg chl-a/l]

concentration of diatoms [µg chl-a/l]

concentration of cryptophyceae [µg chl-a/l]



yellow substances correction transmission (at 5 wavelengths) Measuring range

0 - 200 µg chl-a/l

Resolution

0.05 µg chl-a/l



Touchscreen display

Transmission

0 - 100 %

Weight

16 Kg

Size

420 x 520 x 200 mm

Power supply

110/230 V @50/60 Hz

Your local representative...

Power input

30 W

Sample volume

30 ml

Sample temperature

0 - 40 ° C

Protection class

IP54

Data interfaces

RS 232, MODBUS

Options

up to 16 x 4-20 mA (analog) and 16 digital outputs Maintenance interval

> 7 days

www.bbe-moldaenke.de